Air-water technology - draws heat from the outside air, guaranteed heating capacity up to -25°C, solar connector is available for the water heating in order to additionally optimize the use of energy

Hybrid technology - technology that uses gas condensation combined with air-water technology, the system chooses the most economical operation mode, depending on the price of energy, outer temperature and internal heat load, optimal combination of both technologies

Geothermal technology - the heat is drawn from underground sources, ideal for climate conditions with average outside temperature during winter falls under 3°C, great seasonal efficiency thanks to the stabile underground temperatures. Geothermal energy is collected in two ways: through system of horizontal pipes that are placed 1m-1,5m underground or through system of vertical pipes that reaches to depths from 40m to 100m, where the soil temperature is stable.

Heat pumps ground-water by Austrian company IDM Energie Systeme have very high efficiency value COP (value that shows how much heat energy is provided with one invested kilowatt).